Monolithic micro-coaxial power dividers

Saito, Yuya; Fontaine, D.; Rollin, Jean-Marc; Filipović, Dejan S.

doi:10.1049/el.2009.0309

Cited by 9 publications

(11 citation statements)

References 3 publications

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“…These losses are thermal loads and thus must be (and have been) used for determining the steady state temperature distribution. As seen, the maximum temperature for the recta-coax Gysel divider is 35 C. For comparison purposes, the computed temperature distribution for the recta-coax Wilkinson divider [7] is also shown in Figure 5(b). As seen, for the same input power, the temperature on a Wilkinson divider is much higher.…”

Section: Thermal Analysismentioning

confidence: 93%

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Micro‐coaxial Ka‐band Gysel power dividers

Saito

Fontaine

Rollin

et al. 2009

Micro & Optical Tech Letters

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Monolithic, 450‐μm tall, rectangular coaxial Gysel divider is presented in this article. The divider is fabricated by a surface micromachining process with six sequentially deposited copper layers. Athree‐port, resistor‐less divider has overall loss of 0.6 dB at 30 GHz, input port reflection coefficient better than −10 dB, and output amplitude and phase misbalances of ±0.18 dB and ±1.8°, respectively, throughout Ka‐band. The device is designed in a way that permits straightforward realization of a Gysel divider with integrated resistors. Electromagnetic and electrothermal analyses and design of the divider are conducted, and good agreement with measurements is obtained. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 474–478, 2010; Published online in Wiley InterScience (www.interscience. wiley.com). DOI 10.1002/mop.24956

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Section: Thermal Analysismentioning

confidence: 93%

“…This makes the CPW ideal for use with surface mounted components and simplifies the manufacturing process [4][5][6]. So far, different filters implementation with microstrip defected ground structures and CPW structures have been developed with moderate results [7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Micro‐coaxial Ka‐band Gysel power dividers

Saito

Fontaine

Rollin

et al. 2009

Micro & Optical Tech Letters

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“…Transmission lines in PolyStrata are primarily air dielectric rectangular coaxial lines, referred to as recta-coax, which support a nearly "pure" TEM mode. With PolyStrata's outstanding performance as a transmission medium, coupled with the capability to realize many novel 3D passive microwave structures such as power dividers, antennas, couplers, and impedances transformers, and excellent power handling capabilities, PolyStrata structures have the potential to become a new standard for high performance multichip modules [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Liquid Metal Vertical Interconnects for Flip-Chip Assembly of GaAs C-Band Power Amplifiers onto Micro-Rectangular Coaxial Transmission Lines

Ralston

Oliver

Vummidi

et al. 2011

2011 IEEE Compound Semiconductor Integrated Circuit Symposium (CSICS)

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Figure 1 Images of the PolyStrata liquid metal, flip chip assembly, (a) an exploded view of all major parts, (b) an angled view showing the MMIC with its boarder of SU-8, creating the socket feature at the MMIC's bond pads.Abstract -Prior work has demonstrated a new process utilizing room temperature liquid metal, galinstan, as an interconnect material for flip chip bonding. This interconnect forms a flexible bond between chips and carriers and therefore a flip chip assembly using this technology is much less susceptible to thermomechanical stresses. This paper applies this concept to interconnect MMIC chips to 3D Polystrata transmission line structures. A prefabricated GaAs MMIC chip is post processed for liquid metal assembly. Measured results show, over the MMIC's 4.9 -8.5 GHz frequency range, the system's overall reduction in gain of the MMIC is 1.4 dB or 0.7dB per RF transition as compared to direct probing of the MMIC chip.

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“…Therefore, the investigation of the wideband Wilkinson divider is significant at this time. For this purpose, manly wideband power dividers [1][2][3][4][5][6] have been developed so far. But a few of them introduce the millimeter-wave wideband Wilkinson divider.…”

Section: Introductionmentioning

confidence: 99%

A novel wideband Wilkinson divider using parallel branch lines

Zhang

2011

Micro & Optical Tech Letters

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A novel wideband branch line Wilkinson divider is proposed. Branch lines are introduced to replace multiple resistors used in the multistage Wilkinson divider to increase the bandwidth of a single‐stage Wilkinson divider. To demonstrate its performance, a modified single‐stage Wilkinson divider with four branch lines has been fabricated and measured. Results show that the measured input return loss, output return loss, and isolation are better than 12.4, 11.6, and 15 dB, respectively, across a 72% bandwidth from 18.8 to 40 GHz. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:781–783, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.25833

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Monolithic micro-coaxial power dividers

Cited by 9 publications

References 3 publications

Micro‐coaxial Ka‐band Gysel power dividers

Micro‐coaxial Ka‐band Gysel power dividers

Liquid Metal Vertical Interconnects for Flip-Chip Assembly of GaAs C-Band Power Amplifiers onto Micro-Rectangular Coaxial Transmission Lines

A novel wideband Wilkinson divider using parallel branch lines

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